CVE-2026-89765
CVE CVE-2026-89765EUVD EUVD-2026-76677Published 2026-09-11T19:47:05.000ZLast changed 2026-09-14T12:02:35.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: timers/itimer: Zero-init old itimerval before copy to userspace On native sparc64, struct __kernel_old_timeval contains a four-byte hole after tv_usec because tv_sec is 64-bit while __kernel_suseconds_t is 32-bit. put_itimerval() fills only the named fields in a stack-allocated __kernel_old_itimerval and copies the entire object to userspace, so getitimer() can expose the two padding holes. Zero-initialize the aggregate before assigning the fields so implicit padding is deterministic before it crosses the user/kernel boundary.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.6.157; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4c66719dd1e4023c5e3f7d050f1bbefec3dfbeb4; patch: 5.15.221; patch: 5.10.270; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6d4b937251386d9c6f968e7802f0cb16a8523772; patch: 6.12.109; patch: 6.18.50; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bdfda99c5763822a9a888e8af0ad7d9312ffcfe2; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2bf5e8f7c9bf4ad3be343a9a6e3e50a34264d25e; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <00ef529a5402f41eb1d227916437e237450719f9; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4ea70146ab9376092297eb8b622ef1792797f2cf; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a17b345daff46fec4af9f1ecbdf350208016dd15; patch: 7.2.4; patch: 6.1.188; patch: 7.3-rc1; patch: 0; 2.6.12; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <18c7d85864e554adc8fad1e8d2e9d2cb6c3911c8
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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